Subject: Re: [PATCH net V2 2/4] net/mlx5: Fix deadlock between devlink lock and esw->wq

From: Jakub Kicinski <[email-masked]>
Date: Thu, 29 Jan 2026 15:40:24 -0800

On Thu, 29 Jan 2026 10:33:40 +0000 Cosmin Ratiu wrote:
> > This is quite an ugly hack, is there no way to avoid the flush and
> > let 
> > the work discover that what it was supposed to do is no longer
> > needed?  
> 
> Not possible, unfortunately. I stared at it for quite a while. The wq
> is flushed because the esw is being unconfigured, which removes data
> structs the work handler uses. Flushing the work is required, otherwise
> we'll run into worse issues.

And having a refount on (I presume) struct mlx5_esw_functions
so that work can hold a ref is not an option?
Are you planning to revisit this in -next?